Mapped by Norwegian cartographers from air photos taken by the Lars Christensen Expedition, 1936–37.

So named by Antarctic Names Committee of Australia (ANCA) because a photo-theodolite was erected on the island for parallactic measurement of the aurora by ANARE (Australian National Antarctic Research Expeditions) in 1961.

This article incorporates public domain material from "Parallactic Island".

Geographic Names Information System.

Robertson Land location article is a stub.